Carbureter.



J. C. COLLETT.

GARBURETBR.

APPLIQATION FILED MAY 8, 1913` Patented May 5, 1914.

JOHN c. coLLE'nT, or DAYTON, omo.

oAReURE'rER Y?,ail-minou.itmay concern.' Y

-Be it known that .1,J0HN C. Connerr, cit-izen of the United Sta-tes, residingat Dayton. in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Carburetersg' and I do declare the followingr to he a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use theI same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part` of this specification.

This invention relates to new and useful improvements in earbureters of the type adapted to utilize a fuel having a high point of volatilization, sueh as alcohol, kerosene or various fuel mixtures. ln earbureters 0f this type, the heat of the engine is utilized inevaporating the fuel. and it is therefore necessary to provide a. fuel with a low point. of volatilization, such as gasolene, to initially start the engine.

The object of the present. 'invention is, therefore. to provide a earbureter of simple construction which has ay capacitv for etl'ectuallv utilizing fuels of different degrees of volatilization.

A\nother object. of the. invent-ion is to provide means for increasing the float level of the t'uel in the earbureter when the engine is started. thereby priming the carburetor and insuring a sufficiently richer mixture for `start-ingr purposes.

'l`h'\ accompanying drawing is a vertical longitudinal seetional view of a earbureter constructed according to my invention.

VReferring mor(` particularly to said drawing, 1 represents a shell having a tloat chamber 2 and an air passage 3, separated by a wall 4. which. together with a wall 5, forms a .chamber in which Athe fuel mixture' is prepared. Mounted in said mixing cham'- ber 6 is a fuel jet 7 which is controlled by a needle valve 8 and is adapted to receive oil from the float chamber 2 through a tubular extension 9. The oil enters the chamber 2 through a passage 10'which communicates with a pipe 11, leading from a reservoir A (not shown) through a port 12. The port 12 is controlled by a valve 13 whichis connected to a float 14 by a lever 15 pivoted at 16. vThe oil flows through the pipe 11 and the height of the. oil in the float chamber 2 is maintained ata constant level by the v Specification of Letters Patent.

Application filed May 8, 1913. Serial No. 766,314.

Patented May 5, 1914.

gine through any well known means, such as a jacket on the exhaust manifold.

To secure an excessively rich mixture for use in startingthe engine, the valve or spacecontroller 2O may be depressed against the tension of a spring 22 to reduce the air space by a yoke 23, and a valve 24 mounted in the air passage 3. These elements, however, do 'not form 4part of the present invention.

v It will be understood that any of the Well known types of single fuel carbureters are suit-able for use in connection with my invention.

The fuel fed to the float chamber 2may be aleoholkerosene or any fuel mixture which will not evaporate without the application of heat. A fuel with a low point of volatilization is introduced to the jet 7 by the followingr means. Tapped into the shell l, directly below the tubs 9 and jet 7 and discharging into the float chamber 2, .is a T-A fitting 25. This fitting is provided with a drain coek 26 and is connected with a tube 27 which communicates with a reservoir 28 through exhaust and inlet valves 29 and 30 of a pump 3l. The valves 29 and 30 are mounted in a housing 32 to which the pump is connected'and which forms a part thereof. The said pump 31 and housing 32 are mounted for convenience within the reservoir.29 The said reservoir is supplied with a rcauuy vaporizable fuel, such asgasolene,

and when the pump is actuated, a portion of the gasolene in the reservoir will be drawn into the pump and discharged into the float chamber 2. The said pump is actuated before the engine is erar`.ed or started, and when so actuated, the fuel level in the chamber 2 will be elevated above normal, thereby insuring an excessive amount of exceedingly rich. fuel which will overcome the condensing effect of the cool manifold. Also, as the T-fitting 25 is mounted directly below the jet 7, the fuel initially received by the jet and converted into the fuel mixture in the chamber 6,"xvil1 be the fuel having the lower a l i' i vpoint o yoiatilization, thereby permitting the en e to start'easily. The amount of `fuel intothe o'at chamberl 2, by vthe l -PUVIPP- desired is'uicient to operate the engine a Y vr ngth of time to permits'aid enginev 'to develop'theheat "necessary to v olatilize Havingndescribedmy invention, I claim: v1. ln..-a"-device of the. type -speciiied, the

combinatienxvith a carbuieterhaving an oil Y ing on the interior of .thesaid oil reservoirz ch ambe,fan air chamber, an intervening mixing chamber, vand a jet communicating with'the oil chamber andthe 'mixing cham- ,ber, `an oil reservoir, of a pump having an inlet and 'an outlet valve, athe inlet valve 1yand the'olitlet valve being exterior to' said Y reservoir, and a .pipe connection between the said outlet valve"andthe fioat chamber--be-- A- .In testimony whereoflziix low and in proximity t0 @he etchamber, an' air chamber and aA mixing chamber, and a j et eominunicatin with said oil and mixing chambers, of an o reservoir,

a pump having a vval,ve-controlledcommunication-With said reservoir,anda valve-controlledcoiinunication with the oil chamber of thecaibureter,-said last nainedconimunivcation'l being adapted to-dischar e oil -fr'om said reservoir'to said jet, where y 'a richer' fuel may suppliedto the jet ofthe earbu' vieter at predetermined; times, substantially as specified.

i f2.' Ina.V device of the type specified, the combination with a carliuretei having anl oil *35 my .signature1 

